77548586 ÷ 978 
The aim is to understand the frequency of 978 in 77548586.

Step 1:
When dividing 7 by 978, we get 0 with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Take the next digit (7) from the dividend and append it to 7, then repeat: 77 / 978

Advancing to step 2:
77 divided by 978 is 0 with a remainder of 77.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 77 leaves us with 77.
Fetch the next digit (5) from the dividend, attach it to 77 and continue: 775 / 978

On to step 3:
775 divided by 978 is 0 with a remainder of 775.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 775 and we're left with 775.
Bring next digit (4) of the dividend behind the 775 and repeat the process: 7754 / 978

Let's proceed to step 4:
7754 divided by 978 is 7 with a remainder of 908.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Subtracting 6846 from 7754 leaves us with 908.
Include the next digit (8) from the dividend after 908, then repeat: 9088 / 978

Going ahead to step 5:
978 goes into 9088 9 times with a remainder of 286.
The number 9 becomes the next digit in our result. 
Result so far: 79.0
Subtracting 8802 from 9088 leaves us with 286.
Take the next digit (5) from the dividend and append it to 286, then repeat: 2865 / 978

Moving on to step 6:
When dividing 2865 by 978, we get 2 with a remainder of 909.
Use 2 as the next digit of our solution. 
Result so far: 792.0
Subtracting 1956 from 2865 leaves us with 909.
Take the next digit (8) from the dividend and append it to 909, then repeat: 9098 / 978

Let's proceed to step 7:
When dividing 9098 by 978, we get 9 with a remainder of 296.
The number 9 becomes the next digit in our result. 
Result so far: 7929.0
Subtract 8802 from 9098 to get 296.
Fetch the next digit (6) from the dividend, attach it to 296 and continue: 2966 / 978

Going ahead to step 8:
When dividing 2966 by 978, we get 3 with a remainder of 32.
Use 3 as the next digit of our solution. 
Result so far: 79293.0
If we subtract 2934 from 2966, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 9:
The number 978 fits into 320 0 times, leaving a remainder of 320.
The number 0 becomes the next digit in our result. 
Result so far: 79293.0
If we take 0 away from 320, we end up with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

On to step 10:
978 goes into 3200 3 times with a remainder of 266.
Record the quotient 3 as the next digit in the result. 
Result so far: 79293.03
If we subtract 2934 from 3200, we get 266.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2660, and continue the process.

Advancing to step 11:
2660 divided by 978 is 2 with a remainder of 704.
Put 2 as the next digit of the answer. 
Result so far: 79293.032
The remainder is 704 after subtracting 1956 from 2660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7040, and continue the process.

On to step 12:
The number 978 fits into 7040 7 times, leaving a remainder of 194.
Write down 7 as next digit of the result. 
Result so far: 79293.0327
Subtracting 6846 from 7040 leaves us with 194.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1940, and continue the process.

On to step 13:
978 goes into 1940 1 times with a remainder of 962.
The number 1 becomes the next digit in our result. 
Result so far: 79293.03271
If we subtract 978 from 1940, we get 962.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9620, and continue the process.

Moving on to step 14:
If we divide 9620 by 978, we get 9 and a remainder of 818.
Write down 9 as next digit of the result. 
Result so far: 79293.032719
If we take 8802 away from 9620, we end up with 818.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8180, and continue the process.

Moving on to step 15:
8180 divided by 978 is 8 with a remainder of 356.
The number 8 becomes the next digit in our result. 
Result so far: 79293.0327198
If we take 7824 away from 8180, we end up with 356.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3560, and continue the process.

Moving on to step 16:
When dividing 3560 by 978, we get 3 with a remainder of 626.
The next digit of our result is 3. 
Result so far: 79293.03271983
If we subtract 2934 from 3560, we get 626.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6260, and continue the process.

After the division, we end up with 79293.03271983 and a remainder of 6.26e-07.